Nested object collection mapping

Album.m

//
//  Album.m
//  NeedleMusic
//
//  Created by Davide Cenzi on 13/05/12.
//  Copyright (c) 2012 No1. All rights reserved.
//

#import "Album.h"
#import "Song.h"

@implementation Album


@synthesize code = _code;
@synthesize source = _source;
@synthesize collection_name = _collection_name;
@synthesize artist_name = _artist_name;

@synthesize genre = _genre;
@synthesize genre_id = _genre_id;

//@synthesize release_date = _release_date;
@synthesize collection_id = _collection_id;

@synthesize label_id = _label_id;
@synthesize label = _label;

@synthesize diffusion = _diffusion;
@synthesize small_thumb = _small_thumb;
@synthesize big_thumb = _big_thumb;
@synthesize songs = _songs;



+ (void)setupMapping{
    //managerWithBaseURLString:[[BTAuth sharedObject] apiURL]
    RKObjectManager* objectManager = [RKObjectManager sharedManager];
    
    // Setup our object mappings
    RKObjectMapping* albumMapping = [Album mapping];
    [objectManager.mappingProvider setObjectMapping:albumMapping forKeyPath:@"album"];
    
    
    // Serialization mapping for user class
    RKObjectMapping* albumSerialization = [Album serializationMapping];
    [objectManager.mappingProvider setSerializationMapping:albumSerialization forClass:[Album class]];
    
    //Routes for user class
    [objectManager.router routeClass:[Album class] toResourcePath:@"/albums/:code"];
    [objectManager.router routeClass:[Album class] toResourcePath:@"/albums" forMethod:RKRequestMethodPOST];
    
}

+(RKObjectMapping*)mapping{
    
    RKObjectMapping* albumMapping = [RKObjectMapping mappingForClass:[Album class]];
    albumMapping.rootKeyPath = @"album";  
    [albumMapping mapKeyPath:@"id" toAttribute:@"code"];
    [albumMapping mapKeyPath:@"source" toAttribute:@"source"];
    [albumMapping mapKeyPath:@"collection_name" toAttribute:@"collection_name"];
    [albumMapping mapKeyPath:@"artist_name" toAttribute:@"artist_name"];
    
    [albumMapping mapKeyPath:@"genre" toAttribute:@"genre"];
    [albumMapping mapKeyPath:@"genre_id" toAttribute:@"genre_id"];
    
    [albumMapping mapKeyPath:@"collection_id" toAttribute:@"collection_id"];
    
    [albumMapping mapKeyPath:@"label_id" toAttribute:@"label_id"];
    [albumMapping mapKeyPath:@"label" toAttribute:@"label"];
    
    [albumMapping mapKeyPath:@"diffusion" toAttribute:@"diffusion"];
    [albumMapping mapKeyPath:@"small_thumb" toAttribute:@"small_thumb"];
    [albumMapping mapKeyPath:@"big_thumb" toAttribute:@"big_thumb"];
    
    
    RKObjectMapping *songMapping = [RKObjectMapping mappingForClass:[Song class]];
    [albumMapping mapKeyPath:@"songs" toRelationship:@"songs" withMapping:songMapping];
    
    return albumMapping;
}

+ (RKObjectMapping*)serializationMapping{
    
    
    RKObjectMapping* albumSerialization = [RKObjectMapping mappingForClass:[Album class]];
    //[albumSerialization mapKeyPath:@"code" toAttribute:@"album[id]"];
    [albumSerialization mapKeyPath:@"source" toAttribute:@"album[source]"];
    [albumSerialization mapKeyPath:@"collection_name" toAttribute:@"album[collection_name]"];
    [albumSerialization mapKeyPath:@"artist_name" toAttribute:@"album[artist_name]"];
    
    [albumSerialization mapKeyPath:@"genre" toAttribute:@"album[genre]"]; 
    [albumSerialization mapKeyPath:@"genre_id" toAttribute:@"album[genre_id]"];
    
    [albumSerialization mapKeyPath:@"collection_id" toAttribute:@"album[collection_id]"];
    
    [albumSerialization mapKeyPath:@"label" toAttribute:@"album[label]"];   
    [albumSerialization mapKeyPath:@"label_id" toAttribute:@"album[label_id]"];  
    
    [albumSerialization mapKeyPath:@"small_thumb" toAttribute:@"album[small_thumb]"];
    [albumSerialization mapKeyPath:@"big_thumb" toAttribute:@"album[big_thumb]"];
    
    RKObjectMapping *songMapping = [RKObjectMapping mappingForClass:[Song class]];
    [albumSerialization mapKeyPath:@"songs" toRelationship:@"songs" withMapping:[songMapping inverseMapping] serialize:YES];
    
    return albumSerialization;
    
}


@end

Song.m

//
//  Song.m
//  NeedleMusic
//
//  Created by Davide Cenzi on 17/05/12.
//  Copyright (c) 2012 No1. All rights reserved.
//

#import "Song.h"


@implementation Song
@synthesize code = _code;
@synthesize source = _source;
@synthesize album_id = _album_id;
@synthesize track_name = _track_name;
@synthesize track_time_millis = _track_time_millis;
@synthesize track_time = _track_time;
@synthesize disc_number = _disc_number;
@synthesize track_number = _track_number;
@synthesize audios = _audios;

@synthesize preview_url = _preview_url;

+ (RKObjectMapping*)mapping{
    
    RKObjectMapping* songMapping = [RKObjectMapping mappingForClass:[Song class]];
    songMapping.rootKeyPath = @"song";  
    [songMapping mapKeyPath:@"id" toAttribute:@"code"];
    [songMapping mapKeyPath:@"source" toAttribute:@"source"];
    [songMapping mapKeyPath:@"album_id" toAttribute:@"album_id"];
    [songMapping mapKeyPath:@"track_name" toAttribute:@"track_name"];
    [songMapping mapKeyPath:@"track_time_millis" toAttribute:@"track_time_millis"];
    //calculated attribute
    [songMapping mapKeyPath:@"track_time" toAttribute:@"track_time"];
    
    [songMapping mapKeyPath:@"disc_number" toAttribute:@"disc_number"];
    [songMapping mapKeyPath:@"track_number" toAttribute:@"track_number"];
    
#warning removed relationship 'audios' from song
    //[songMapping hasMany:@"audios" withMapping:[Audio mapping]];
    
    return songMapping;
}

+ (RKObjectMapping*)serializationMapping{
    
    RKObjectMapping *songSerialization = [RKObjectMapping mappingForClass:[Song class]];
    //[songSerialization mapKeyPath:@"code" toAttribute:@"song[id]"];
    [songSerialization mapKeyPath:@"source" toAttribute:@"source"];
    [songSerialization mapKeyPath:@"album_id" toAttribute:@"album_id"];
    [songSerialization mapKeyPath:@"track_name" toAttribute:@"track_name"];
    //[songSerialization mapKeyPath:@"track_time_millis" toAttribute:@"track_time_millis"];
    
    //skip track_time, it's a calculated attribute
    [songSerialization mapKeyPath:@"disc_number" toAttribute:@"disc_number"];    
    [songSerialization mapKeyPath:@"track_number" toAttribute:@"track_number"];
	
    //custom attribute used to track audio player
    //[songSerialization mapKeyPath:@"preview_url" toAttribute:@"preview_url"];
    
    return songSerialization;
}


+ (void)setupMapping{
    //managerWithBaseURLString:[[BTAuth sharedObject] apiURL]
    RKObjectManager* objectManager = [RKObjectManager sharedManager];
    
    // Setup our object mappings
    RKObjectMapping* songMapping = [Song mapping];
    [objectManager.mappingProvider setObjectMapping:songMapping forKeyPath:@"song"];
    
    // Serialization mapping for user class
    RKObjectMapping* songSerialization = [Song serializationMapping];
    [objectManager.mappingProvider setSerializationMapping:songSerialization forClass:[Song class]];
    
    //Routes for user class
#warning removed routes for songs, sent only within an album object
    //[objectManager.router routeClass:[Song class] toResourcePath:@"albums/:album_id/songs/:code"];
    //[objectManager.router routeClass:[Song class] toResourcePath:@"albums/:album_id/songs" forMethod:RKRequestMethodPOST];
    
}



@end